tree and weed is high so those will have the potential problems. 52 in fairfield and 37 in napa and 38 in los gatos and 37 in livermore and 39 at half moon bay and the rest of us in the mid 40's. back to average today, with most of us in the 60's away from the coast and the 70's return [ explosion ] >> something just blew up. >> that is what you heard. that is what you saw. that is what you felt in those final moments before the finish line when those bombs went off at the boston marathon shortly before 3:00 p.m. yesterday, moments of terror. 12 seconds of terror that shook a whole city now reverberating all across the country. good morning, america, from boston, a city reeling this morning after a day of celebration was shattered by shrapnel from those bombs exploding at the finish line. came at mile 26, this mile also marked for the 26 victims of the newton tragedy. i'm here are josh elliott, brian ross, martha raddatz. everyone reported this story all night long after those 12 seconds of terror in boston. >> about three blocks from here, george, just to our left on boylston street a